undergo
verb (used with object)
to be subjected to; experience; pass through.
was undergoing
-
past progressiveof undergo.past progressive
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Both inflammatory and anti-inflammatory signals increased at the same time, suggesting that the immune system was undergoing a more complicated adaptive response rather than simply becoming more or less active.
From Science Daily ● Aug. 9, 2026
The ship returned to San Francisco on Thursday and was undergoing cleaning and disinfection before departing for its next voyage in the afternoon, according to the spokesperson.
From Los Angeles Times ● Jul. 2, 2026
Officials added that the calf was undergoing treatment and improving, and emphasized that the worms do not infest food sources like meat, fruit or vegetables.
From Barron's ● Jun. 4, 2026
He was undergoing treatment, they said, and would not compete in any of his scheduled activities over the coming weekend.
From BBC ● May 21, 2026
But generally during this era, throughout the Western world, the nature of criminal punishment was undergoing profound change.
From "Newjack: Guarding Sing Sing" by Ted Conover
